Cooling big halls [Hangars] can be a big problem for conventional air conditioners, but not for evaporative cooling. One big cooler can cool down up to 400 sqm of hall [hangar]. Periodic inspections in cooled halls can be more precise because service technicians will work in convenient conditions.
Evaporative coolers cool down airport hangars using only water and 1/10 of electric energy that conventional coolers would use.